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TypeScript & JavaScript

Status: 🟢 Active  |  Owner: Frontend/Node Guild

TypeScript is the enterprise standard for all JavaScript-ecosystem code. Plain JavaScript is not approved for new projects.

Quick Reference

Topic Standard
Language TypeScript 5.4+
Runtime Node.js 22 LTS
Package manager pnpm
Formatter prettier
Linter eslint + @typescript-eslint
Frontend React 18 + Next.js 14
Backend NestJS 10 (APIs), Fastify 4 (lightweight)
Test framework Jest (unit), Playwright (E2E)

Last reviewed: 2025-Q4  |  Owner: Frontend/Node Guild